CN2195781Y - Failure recording wave analysing device for electrical system - Google Patents
Failure recording wave analysing device for electrical system Download PDFInfo
- Publication number
- CN2195781Y CN2195781Y CN 94214419 CN94214419U CN2195781Y CN 2195781 Y CN2195781 Y CN 2195781Y CN 94214419 CN94214419 CN 94214419 CN 94214419 U CN94214419 U CN 94214419U CN 2195781 Y CN2195781 Y CN 2195781Y
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- electric power
- power system
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- system fault
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Abstract
The utility model relates to a failure wave recording and analyzing device for an electrical system, which adopts a plurality of microcomputers and a master-slave hierarchical network structure. The utility model is composed of a data acquisition station and an analyzing station, wherein the analyzing station is composed of an 80386 host computer and a monitor with ultrahigh resolution; the data acquisition station is composed of an 80286 industrial computer and a plurality of special intelligent acquisition modules. Each slave computer module adopts a single chip computer as an intellectualized part, and the data acquisition station and the analyzing station transfer data through a real-time network. The utility model is mainly used for recording wave shapes. When an electrical system short-circuits, oscillates, collapses in frequency and collapses electrically, the current, the voltage, the frequency and the derived quantity of the system are processed in fault analysis and fault distance measurement.
Description
The utility model relates to a kind of electric power system fault record wave analysis device, it is mainly used in record, the overall process that system power, voltage, frequency and road output thereof change if any merit power, reactive power etc. when electric system is short-circuited fault, vibration, collapse of frequency, power collapse, and in addition fault analysis and fault localization.
As everyone knows, electric power is the basic guarantee of the national economic development, the safety of electric system, reliable and high-quality operation then is the assurance of national economy, along with China's constant development of economy, the control of Operation of Electric Systems, monitor, detection and record are more and more important, stipulate according to China Ministry of Energy: 220KV and above transformer station must adorn the electric power system fault wave recording device, yet, China generally uses at present is still conventional light formula fault wave recording device, this device can't be realized the time real record of fault effectively, all running statuses before and after the record trouble more intactly, and can't incorporate the automatic dispatching net into, therefore, it can not satisfy the needs of China's present stage power system development far away.The applicant is engaged in the research of microcomputer type electric power system fault wave recording device for many years always, first generation device be based on that single chip microcomputer handles 8031 and design, data acquisition system (DAS) is the drive sweep formula.The major defect of this generation device is that data acquisition and failure logging time performance are poor, and the processing power and the analysis ability of microprocessor are poor.Second generation device be based on PC type microprocessor 8088 and the design.Data acquisition system (DAS) remains the drive sweep formula.Although this generation device is being enhanced aspect processing power and the analysis ability, but still can't guarantee the real-time of data acquisition and fault effectively, and domestic and international producer such as Nanjing Automation Research Institute, Huabei Electric Power College, Wuhan Power instrucment and meter plant, CEIEC Shenzhen Industry and Trade Company, the like product that France TS company produces exploitation is single chip computer architecture in the master control system structure, processing speed was slow when its performance had fault, and inside and outside storage is little, was shown as the charactron mode, reliability and full property are relatively poor, port number is few, accuracy, shortcomings such as real-time difference.
The purpose of this utility model is a kind of improved electric power system fault record wave analysis device that provides at the deficiency of prior art, it adopts popular in the world isa bus Industrial Control Computer at present, and designed the data acquisition system (DAS) that carries CPU and become independent particle system, thereby guarantee the real-time and synchronism of data acquisition and waveform recording, guaranteed the true and reliable property of wave recording, aspect analysis, adopted 80386, thereby increased the analytic function of this device, thereby overcome the deficiency of prior art effectively.
The purpose of this utility model is realized by following technical measures:
It adopts multi-microcomputer, the master-slave mode hierarchical network architecture, and whole device is made up of data acquisition station and analysis station; Analysis station is equipped with the ultrahigh resolution display by IBM main frame 386 to be formed, and host CPU is 32 INTEL 80386DX; Described data acquisition station is equipped with some special intelligent acquisition modules by ADVANTECH industrial computer IPC and forms; Host CPU is 16 INTEL80286; Each slave module adopts the MCS-51 single-chip microcomputer to make intelligent parts; Motherboard and polylith slave plate all are plugged in the casing, constitute the modular construction of complete standard, and described data acquisition station and analysis station are by the real-time network transmission, in addition, this device also is provided with keyboard special, transmitter, printer, high anti-interference uninterrupted power source and teletransmission communication interface.
Described data acquisition station is the standard modular structure, and the motherboard of PCA-6126 type is ALL-IN-ONE 286 CPU board; Acquisition system comprises that analog acquisition, switch acquisition and intelligent frequency measurement module are MCS-51 series monolithic 8031, adopts two-port RAM and DMA to transmit between principal and subordinate's machine.
An analysis station can connect a plurality of acquisition stations, transmits by real-time network between analysis station and the acquisition station.
The anti-interference uninterrupted power source of described height is the high anti-jamming power-supply of DC-AC two-use.
The RS-232C teletransmission communication interface that described teletransmission communication interface is a standard.
The MODER/FAX interface that described teletransmission communication interface is a standard.
Described acquisition station function program is carried out following work: master routine is at first finished initial work, start being provided with of judgment data parameter etc. from each set analog quantity, switching value and carry out initialization process, and reception constantly respectively blocks the data of sending, whether see start-up criterion, if just start the fault data that sends is deposited, and send analysis station to by network.
Described analysis station function program is online or off-line type, and it carries out following work: online program provides various menus or keyboard entry method, and finishes network and transmit display waveform figure, print fault abridged table; The off-line type program is also finished the demonstration of acquisition station trouble spot in the network system except that finishing online function, print range finding, teletransmission communication.
This device integral body is relatively independent hierarchy up and down, and top is weak current part, and the bottom is a strong power part; Wherein the supporting plate of printer is the guide rail plug in construction.
From the description of above technical scheme as can be seen: owing to adopt the high-speed real-time net with two microcomputer UNICOM, can guarantee the no dead band of device operation, extendability is fabulous simultaneously, and owing to adopt isa bus to compare with traditional STD bus, its more reasonable structure is more reliable, data transmit more convenient, good reliability.With existing P C machine, comprise the 386, the 486th, identical bus structure are arranged.Thereby make its data communication very simple, data bit length doubles.The working method of data acquisition system adopted independent CPUs band storage, promptly itself constitutes an independently complete subsystem, can finish functions such as initialization, data acquisition, conversion and storage independently.
Fig. 1 is that the system of electric power system fault record wave analysis device constitutes block diagram;
Fig. 2 is the acquisition station organigram of electric power system fault record wave analysis device;
Fig. 3 is the analysis station program flow diagram of electric power system fault record wave analysis device;
Fig. 4 is the acquisition station program flow diagram of electric power system fault record wave analysis device;
Fig. 5 is the front arrangement plan of electric power system fault record wave analysis device;
Fig. 6 is the back side arrangement plan of electric power system fault record wave analysis device;
Fig. 7 is the current transducer circuit theory diagrams of electric power system fault record wave analysis device;
Fig. 8 is the voltage transmitter circuit theory diagrams of electric power system fault record wave analysis device.
Describe formation and the embodiment and the detail of this device in detail below in conjunction with accompanying drawing.
Referring to accompanying drawing 1,2, deliver to the analog acquisition plate by the external signal that each test sample point comes by electric current, voltage, frequency measurement transmitter, display, push button signalling are delivered to display and Keyboard Control plate.These acquisition modules connect bus power source, link to each other (comprising 286CPU with acquisition station industrial computer 80286 by each terminal row interface slot, dominant frequency 16M main memory 2M, the EPROM dish〉360K, self-repairing circuit WATCHDOG Magnetic Disk Controller 2F and 2H, real-time network interface card NE2000, printer parallel port controller, the universal keyboard controller) each capture card program is worked out with MCS-51 series monolithic assembly language, and the acquisition station program of 80286 industrial computers is worked out with the C language.This master routine places in the 80286 industrial computer hard disks, and its action is for full-automatic.It at first finishes initial work, constantly receives the data of coming from acquisition module, whether sees start-up criterion, if just start the fault data that sends is deposited, and sends analysis station to by real-time network.
Be built-in with the analysis station function program referring to accompanying drawing 3 analysis station main frames 80386, it promptly stops manual intervention after collecting fault data, carries out analyzing and processing immediately, discern fault automatically, and the register system oscillatory process is calmed down until vibration.Can measure automatically the distance of the position of fault simultaneously, error is no more than 5%, the output of can promptly exporting or tabulate.In have faulty line and separate, separate fault distance trips, fault begins and the duration, each protection is begun to the actuation time that provides trip signal by fault, the trouble power peak value of the fault or first cycle and effective value and busbar voltage effective value, the reclosing absolute time, fault is separate and trip separate once more, each operating time of protection, absolute time once more trips, the fault current peak value of first cycle and effective value and busbar voltage effective value after the fault once more, simultaneously, the analysis station main frame can be preserved fault data more than 50 times; It also is responsible for the parameter and the time of acquisition station industrial computer are set.
Referring to Fig. 4, the acquisition station industrial computer is provided with function program.Its receiving and analyzing station host to parameter and time set, finish initialization, receive the data that acquisition module is sent here, carry out filtering, start judgment data.Judge when electric system is broken down, and, by real-time network fault data is sent to analysis station simultaneously, return again and constantly receive data the data deposit; During non-fault, do not start judgment data, directly return the reception data.
Referring to accompanying drawing 5, the trim designs of this device is the layered framework structure, and various piece is relatively independent, distributes rationally, is convenient to Operation and Maintenance.This device part generally is a weak current part, and the bottom is divided into strong power part.Wherein 1 place high anti-interference uninterrupted power source and pilot lamp, power switch; 2 place analysis station host computer 386; 3 place display and keyboard special; 4 place acquisition station slave computer 286; 5,6 all place microcomputer interchange interface; 7 place printer; 8,9 be respectively advancing or going out of printer paper.3, the steel supporting plate is arranged between 4, strong, weak electricity is partly separated to reduce mutual aerial electromagnetic interference (EMI).The supporting plate of printer is the guide rail plug-in type, can pull out very easily or advance, and can pull out printer at any time when needing to print.
Referring to accompanying drawing 6, terminal row is positioned at this both sides, device rear portion, and left-right symmetric is followed successively by switching value terminal row 11, carrier current protection terminal row 12, analog quantity terminal row 13 from top to bottom.
Referring to accompanying drawing 7,8, CT is applicable to current transducer among the figure, and PT is applicable to voltage transmitter, frequency measurement transmitter.CT or PT all play buffer action, be about to forceful electric power and become light current, thereby the isolation fully on the electrical specification of the light current of the forceful electric power that makes input and the operation of this device overall situation are played and are guaranteed that this device moves and be not subjected to the interference of forceful electric power on electric.Each capacitor C among the figure plays the anti-interference effect of forceful electric power, and it has prevented that effectively various interference such as thunder and lightning are to the intrusion of this device in the incoming line.
The part of not described in detail in the utility model content and the embodiment is consistent with prior art.
Main devices inventory wherein
Analysis station:
1. chassis power supply 2.FAX/MOEM card
3. motherboard 80,386 4. keyboard 101K MK
5. colour display screen card 8900C 6. floppy drive 1.44M
7.IDE card PMG540 8. hard disk ALPDR 311 100M
9. network interface card NE2000
Acquisition station:
1. chassis power supply IPC-610/250
2.AU-IN-ONE motherboard 80286/80386
3. network interface card NE2000
4. hard disk SEAGATE351
Power supply:
The uninterrupted anti-jamming power-supply of SANTEK 500W/1000W
Printer:
CR 3200 color printers and LQ1600 monochrome printers
Transmitter:
1.PT voltage send device 2.CT current transducer
Main IC inventory:
INTEL 30386.INTEL8031.AD1674
VM9001L.LF398.AD7506.HITACHI6116／6264
NS74LS373／245.NS2764／2732.
Claims (9)
1, a kind of electric power system fault record wave analysis device, it is characterized in that: it adopts multi-microcomputer, the master-slave mode hierarchical network architecture, whole device is made up of data acquisition station and analysis station; Analysis station is equipped with the ultrahigh resolution display by IBM main frame 386 to be formed, and host CPU is 32 INTEL 80386DX; Described data acquisition station is equipped with some special intelligent acquisition modules by ADVANTECH industrial computer IPC and forms; Host CPU is 16 INTEL80286; Each slave module adopts the MCS-51 single-chip microcomputer to make intelligent parts; Motherboard and polylith slave plate all are plugged in the casing, constitute the modular construction of complete standard, and described data acquisition station and analysis station are by the real-time network transmission, in addition, this device also is provided with keyboard special, transmitter, printer, high anti-interference uninterrupted power source and teletransmission communication interface.
2, according to the described electric power system fault record of claim 1 wave analysis device, it is characterized in that: described data acquisition station is the standard modular structure, and the motherboard of PCA-6126 type is ALL-IN-ONE 286 CPU board; Acquisition station comprises analog acquisition, and switch acquisition and intelligent frequency measurement module are MCS-51 series monolithic 8031, adopts two-port RAM and DMA to transmit between principal and subordinate's machine.
3, according to the described electric power system fault record of claim 1 wave analysis device, it is characterized in that: an analysis station can connect a plurality of acquisition stations, transmits by real-time network between analysis station and the acquisition station.
4, according to the described electric power system fault record of claim 1 wave analysis device, it is characterized in that: the anti-interference uninterrupted power source of described height is the high anti-jamming power-supply of DC-AC two-use.
5, according to the described electric power system fault record of claim 1 wave analysis device, it is characterized in that: the RS-232C teletransmission communication interface that described teletransmission communication interface is a standard.
6, according to the described electric power system fault record of claim 1 wave analysis device, it is characterized in that: the MODER/FAX interface that described teletransmission communication interface is a standard.
7, according to the described electric power system fault record of claim 1 wave analysis device, it is characterized in that: described acquisition station function program is carried out following work: master routine is at first finished initial work, from each set analog quantity, switching value starts being provided with of judgment data parameter etc. and carries out initialization process, and reception constantly respectively blocks the data of sending, whether see start-up criterion, if just start the fault data that sends is deposited, and send analysis station to by network.
8, according to the described electric power system fault record of claim 1 wave analysis device, it is characterized in that: described analysis station function program is online or off-line type, it carries out following work: online program provides various menus or keyboard entry method, and finish network and transmit, display waveform figure, the print fault abridged table; The off-line type program is also finished the demonstration of acquisition station trouble spot in the network system except that finishing online function, print range finding, teletransmission communication.
9, according to the described electric power system fault record of claim 1 wave analysis device, it is characterized in that: this device is whole to be relatively independent hierarchy up and down, and top is weak current part, and the bottom is a strong power part; Wherein the supporting plate of printer is the guide rail plug in construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94214419 CN2195781Y (en) | 1994-06-14 | 1994-06-14 | Failure recording wave analysing device for electrical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94214419 CN2195781Y (en) | 1994-06-14 | 1994-06-14 | Failure recording wave analysing device for electrical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2195781Y true CN2195781Y (en) | 1995-04-26 |
Family
ID=33830679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94214419 Expired - Fee Related CN2195781Y (en) | 1994-06-14 | 1994-06-14 | Failure recording wave analysing device for electrical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2195781Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581752B (en) * | 2009-06-09 | 2011-06-22 | 深圳市双合电气股份有限公司 | Power transmission line parameter online measurement method based on fault wave recording |
| CN102539976A (en) * | 2012-01-12 | 2012-07-04 | 宁夏回族自治区电力公司 | Electric multifunctional wave recording analyzer |
| CN102664390A (en) * | 2012-05-22 | 2012-09-12 | 普尔盾电气（上海）有限公司 | Digital general protection observing and controlling device |
-
1994
- 1994-06-14 CN CN 94214419 patent/CN2195781Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581752B (en) * | 2009-06-09 | 2011-06-22 | 深圳市双合电气股份有限公司 | Power transmission line parameter online measurement method based on fault wave recording |
| CN102539976A (en) * | 2012-01-12 | 2012-07-04 | 宁夏回族自治区电力公司 | Electric multifunctional wave recording analyzer |
| CN102539976B (en) * | 2012-01-12 | 2016-01-06 | 宁夏回族自治区电力公司 | Electric multifunctional analysis instrument |
| CN102664390A (en) * | 2012-05-22 | 2012-09-12 | 普尔盾电气（上海）有限公司 | Digital general protection observing and controlling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |